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001-es BibID:	BIBFORM105789
035-os BibID:	(cikkazonosító)20450 (WoS)000889945500067 (Scopus)85142874450
Első szerző:	Łysko, Andrzej
Cím:	Comparison of discriminant methods and deep learning analysis in plant taxonomy: a case study of Elatine / Andrzej Łysko, Agnieszka Popiela, Paweł Forczmaǹski, Attila Molnár V., Balázs András Lukács, Zoltán Barta, Witold Maćków, Grzegorz J. Wolski
Dátum:	2022
ISSN:	2045-2322
Megjegyzések:	Elatine is a genus in which, flower and seed characteristics are the most important diagnostic features; i.e. seed shape and the structure of its cover found to be the most reliable identification character. We used a combination of classic discriminant methods by combining with deep learning techniques to analyze seed morphometric data within 28 populations of six Elatine species from 11 countries throughout the Northern Hemisphere to compare the obtained results and then check their taxonomic classification. Our findings indicate that among the discriminant methods, Quadratic Discriminant Analysis (QDA) had the highest percentage of correct matching (mean fit - 91.23%); only the deep machine learning method based on Convolutional Neural Network (CNN) was characterized by a higher match (mean fit - 93.40%). The QDA method recognized the seeds of E. brochonii and E. orthosperma with 99% accuracy, and the CNN method with 100%. Other taxa, such as E. alsinastrum, E. trianda, E. californica and E. hungarica were matched with an accuracy of at least 95% (CNN). Our results indicate that the CNN obtains remarkably more accurate classifications than classic discriminant methods, and better recognizes the entire taxa pool analyzed. The least recognized species are E. macropoda and E. hexandra (88% and 78% match).
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Elatine Discriminant methods Machine learning Plant taxonomy
Megjelenés:	Scientific Reports. - 12 : 1 (2022), p. 1-9. -
További szerzők:	Popiela, Agnieszka Forczmaǹski, Paweł Molnár V. Attila (1969-) (biológus, botanikus) Lukács Balázs András (1979-) (ökológus) Barta Zoltán (1967-) (biológus, zoológus) Maćków, Witold Wolski, Grzegorz J.
Pályázati támogatás:	NKFIH-K-138503 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM085346
Első szerző:	Popiela, Agnieszka A.
Cím:	The distibution of Elatine hydropiper L. (Elatinaceae) / Agnieszka A. Popiela, Andrzej R. Łysko, Anetta Wieczorek, Attila V. Molnár
Dátum:	2012
ISSN:	0001-6977 2083-9480
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény hazai lapban folyóiratcikk vascular plants Elatinella map chorology Isoëto-Nanojuncetea Europe Asia
Megjelenés:	Acta Societatis Botanicorum Poloniae. - 81 : 2 (2012), p. 137-143. -
További szerzők:	Łysko, Andrzej Wieczorek, Anetta Molnár V. Attila (1969-) (biológus, botanikus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM084115
Első szerző:	Popiela, Agnieszka
Cím:	Recent distribution of the Euro-Siberian-sub- Mediterranean species Elatine alsinastrum L. (Elatinaceae) / Agnieszka Popiela, Andrzej Łysko, Attila Molnár
Dátum:	2013
ISSN:	0365-0588 1847-8476
Megjegyzések:	The general distribution of the endangered Euro-Siberian sub-Mediterranean species Elatine alsinastrum L. is provided using literature, web-sources and herbaria dataset. The distribution pattern shows some regularities: occurrence of locations along river valleys, formation of concentrated site clusters in some lowlands, wide distances between locations or site clusters or single locations between their clusters. The distribution patterns in central Europe seem to be rather well related to the history of the human migration in Europe at least since the Late Holocene. The scattered locations on the eastern part of the distribution area are likely to be a consequence of missing information, rather than to the fragmentation of its distribution.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Elatine alsinastrum ephemerophyte distribution
Megjelenés:	Acta Botanica Croatica. - 72 : 2 (2013), p. 375-386. -
További szerzők:	Łysko, Andrzej Molnár V. Attila (1969-) (biológus, botanikus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM079626
035-os BibID:	(cikkazonosító)e3399 (PMID)28584724 (PMCID)PMC5455294 (WoS)000402560400009 (Scopus)85019676830
Első szerző:	Popiela, Agnieszka
Cím:	Seed morphometric characteristics of European species of Elatine (Elatinaceae) / Agnieszka Popiela, Andrzej Łysko, Bożenna Białecka, Magdalena Marta Bihun, Gábor Sramkó, Waldemar Staroń, Anetta Wieczorek, Attila Molnár V.
Dátum:	2017
ISSN:	2167-8359
Megjegyzések:	Elatine L. contains ca. 25 small, herbaceous, annual species distributed in ephemeral waters in both hemispheres. All species are amphibious and characterized by a high degree of morphological variability. The importance of seed morphology in Elatine taxonomy has been emphasized by many authors. The degree of seed curvature and seed coat reticulation have been traditionally considered very important in recognizing individual species of this genus. Seed morphometric characteristics of 10 Elatine species, including all European native taxa, are provided on the basis of material from two or three populations of each species. A total of 24?50 seeds were studied from each population, altogether 1,260 images were used for the morphometric study. In total, six parameters were measured from SEM pictures: object surface area, profile specific perimeter (object circuit), rectangle of the object (a) length, rectangle of the object (b) width, angle of the seed curvature, and number of pits in the seed coat counted in the middle row. Our study shows that the range of morphological variation of seeds in European species of Elatine is great, both between the species and the populations. Discrimination analysis showed that all six traits significantly differentiate the populations studied (? = 0.001, p < 0.001), and the greatest contributions were ♭♭number of pits'', ♭♭rectangle_a'', and ♭♭the angle curvature''. Multidimensional scaling based on a correlation matrix of Mahalanobis distance of the six features studied revealed the greatest similarity between the three populations of E. alsinastrum, E. macropoda, and E. hexandra. Regarding interspecific differences, a Kruskal?Wallis tests showed that, in many cases, lack of statistically significant differences between species relative to the studied seed traits. If distinction of species is only based on seeds, especially if only a few seeds are evaluated, the following species pairs can be easily confused: E. alsinastrum and E. orthosperma, E. hexandra and E. macropoda, E. campylosperma and E. hydropiper, as well and E. gussonei and E. hungarica. We found no diversity in seed coat micromorphology within pits that could have potential taxonomic importance. An identification key and descriptions of species are provided on the basis of seeds traits.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Determination key Ephemerals Amphibious species Seed coat Morphology Malphigiales SEM Micromorphology Seeds traits
Megjelenés:	PeerJ. - 5 (2017), p. 1-25. -
További szerzők:	Łysko, Andrzej Białecka, Bożenna Bihun, Magdalena Marta Sramkó Gábor (1981-) (biológus) Staroń, Waldemar Wieczorek, Anetta Molnár V. Attila (1969-) (biológus, botanikus)
Pályázati támogatás:	OTKA K108992 OTKA
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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